Ok, I am a pushover for a stray.  I was in my garage refinishing an old
piece of furnisher (that's my hobby).  When a sweet kitty walked in.

She is so little, she can't be anymore then six months.  She was under
nurished.  I could feel her ribs and she had milk sacks.  So she is a baby
who had kittens.

I immediately went in and found a can of wet food and she ate it up then I
bought her some water and some dry food and she ate one and a half bowls.

I left the garage door open for the rest of the day and into the night just
incase she needed to get back to her kittens but she didn't leave.  I
imagine she lost her litter because she is so young and undernourished. She
stayed in the garage with plenty of food, water, and a bed.

Ok, so here is the problem.  What do I do with her, taking her in with my
indoor cats is not a good idea, my female reacts negatively to other felines
and I don't know if this kitten has any diseases and can't afford a vet
visit.

The other problem is the guy across from me has a Male Siamese who I think
is getting the girls pregnant and I bet this kitten is a product of this
Casanova's work and possibly got her pregnant.

What should I do with the kitty?  Take her to the Humane Society?  I live in
Missouri and it is a kill shelter.

What about the male cat across the street?  How do I tell the guy his cat
should be neutered?  And still maintain a good relationship?